Chain wrench.



No. 7|0,7|9. Patented Oct. 7, I902. J. J. SEEMAN.

CHAIN WRENCH.

(Application filed Aug. 27, 1901.)

(No Model.)

n: nonms Pzrzgxs co, wow-urns WASHINGTON. n. c.

. llwirnn Sterne PATENT Orrncs.

JOHN J. SEEMAN, OF IBARSTOIV, CALIFORNIA, ASSIGNOR OF ONE-HALF TO LOUIS E. PORTER, OF BARSTOlV, CALIFORNIA.

OHAEN WRENCH.

SPEGEEICATION forming part of Letters Patent No. 710,719, dated October 7, 1902.

Application filed August 27,1901- Serial No. 73,498. (No model.)

* all whom it may concern: pipe, as shown in Fig. 1. Now when a down- Be it known that I, JOHN J. SEEMAN, a citiward force is applied to the rear of the hanzen of the United States, residing at Barstow, dle the greater the pressure the tighter the in the county of San Bernardino, State of chain grips the pipe. As the handle is alike 53 California,haveinvented new and useful Imon both sides and as the chain will turn to provements in Chain lVrenches, of which the either side of the head, it makes no difference following is a specification. which side is turned upward. By putting My invention relates to that class of the chain over the pipe, then passing it down wrenches wherein one end of a chain is conand under and adjustingit through theopen- 60 1o nected to a suitable handle, and the chain is ing. in the handle, an upward force may be employed to pass around the pipe to beturned applied to turn the pipe. Any shape may be and the free end to be then fastened to the given to the opening through the handle, prohandle, the chain and handle cooperating to viding it is contracted toward the shorter end turn the pipe; and the objects thereof are to orheadofthehandle,andthelinksofthe chain 65 provide a wrench of simple construction, in are of such shape that they will render freely which the adjustment of the chain can be through the enlarged portion of the opening readily effected, and which will quickly and in the handle and will pass into and be presecurely grip the pipe without the danger of vented from rendering through the contracted slipping; and which can be used equally well portion of the opening in the handle. 70 with either side of the wrench upward, and The chain must be pivotally attached to the which is adapted to grasp and hold pipes of head at such a distance from the front or standard sizes orirregular sizes, equally well. face of the head that when the wrench is I accomplish these objects by the wrench placed onthe pipe the face of the head will described herein and illustrated in the accontact with the pipe a little above the di- 75 companying drawings, in which ameter of the pipe, which lies in a plane par- Figure 1 is a side view of my wrench in allel with the plane which passes longitudiplace on a pipe. Fig. 2 is a plan of iny wrench nally through the handle, and prevent the first removed from the pipe. link of the chain from contacting with the In the drawings, A is the handle, having a pipe, as shown in Fig. 1. 80 head 13, to which the chain 0 is attached piv- Having described my invention, what I otally, so that the free end of the link attached claim as new, and desire to secure by Letters to the head will swing over the end of and Patent, is to either side of the head. Back of the head A chain wrench comprising a handle havis a transverse opening D through the haning a head; an opening through the handle 85 5 dle, which lies in the same plane as the pivot back of and near to the head; said opening which unites the chain to' the head, through having a contracted portion toward the head; which the chain may render freely in adjustand a chain pivotally connected to the head ing the chain on the pipe. This opening is intermediate the face thereof and the opencontracted toward the head, so that a link ing in the handle and having the link con- 9 40 of the chain will pass edgewise into the connected to the head, adapted to swing over tracted portion; but the junction of two links the face of the head to eitherside thereof, said will not render therethrough, thereby enpivotal connection lying in the same plane abling the chain to be adjusted as to length as the opening through the handle and being at every link, which enables me to use a sina sufficient distance from the face (of the 95 gle wrench on many different sizes of pipe. head) to prevent the first link of the chain In the operation of my wrench the chain is from coming in contact with the pipe when first passed under and over the pipe and the the wrench is used thereon with the head free end passed through the opening in the thereof in contact with the pipe above the handle and is preferably adjusted as to length diameter of the pipe, which lies in a plane I00 so that when the chain is taut the head of the parallel with the plane which passes longihandle will be a little above the center of the tudinally through the handle; the free end hereunto subscribed my name this 22d day of of said chain being adapted to render freely August, 1901.

through the enlarged portion of the opening in the handle and to pass into the contracted T r T portion when adjusted on the pipe and to be JOID SEEMAL' I held from rendering through such contracted portion of the opening.

In Witn ess that I claim the foregoing I have I 'Witnessesf G. E. HARPHAM, MATTIE HCGINNIS. 

